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stuce-bot 2025-06-30 20:47:33 +02:00
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libraries/FastLED/tests/test_lut.cpp Normal file
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// g++ --std=c++11 test.cpp
#include "test.h"
#include "test.h"
#include "lib8tion/intmap.h"
#include "fl/lut.h"
using namespace fl;
TEST_CASE("LUT interp8") {
LUT<uint16_t> lut(2);
uint16_t* data = lut.getDataMutable();
data[0] = 0;
data[1] = 255;
CHECK_EQ(lut.interp8(0), 0);
CHECK_EQ(lut.interp8(255), 255);
CHECK_EQ(lut.interp8(128), 128);
// Check the LUT interpolation for all values.
for (uint16_t i = 0; i < 256; i++) {
uint16_t expected = (i * 255) / 255;
CHECK_EQ(lut.interp8(i), expected);
}
}
TEST_CASE("LUT interp16") {
LUT<uint16_t> lut(2);
uint16_t* data = lut.getDataMutable();
data[0] = 0;
data[1] = 255;
CHECK_EQ(lut.interp16(0), 0);
CHECK_EQ(lut.interp16(0xffff), 255);
CHECK_EQ(lut.interp16(0xffff / 2), 127);
// Check the LUT interpolation for all values.
for (int i = 0; i < 256; i++) {
uint16_t alpha16 = map8_to_16(i);
CHECK_EQ(i, lut.interp16(alpha16));
}
}